MESON Chess Problem Database
Problem Display
PID: 176288 (8/3K4/5p2/2p1kN2/8/3QPn2/5r2/8 w - - 0 1)
Krumm, Hans Christoph Heinz Otto
Schach-Echo, 1971
#2
4 + 5
| 6490 | yacpdb | 2018 |
SOLUTION
- SOUND
- Tries
- 1.Sg3?
- threat
- 2.Qe4#
- 2.Qf5#
- 2.Qd6#
- 1...Sd4
- 2.Qe4#
- 1...f5
- 2.Qxf5#
- 2.Qd6#
- 1...Se1
- 2.Qe4#
- 2.Qd6#
- 1...Sg1
- 2.Qe4#
- 2.Qd6#
- 1...Sd2
- 2.Qd6#
- 1...Sh2
- 2.Qe4#
- 2.Qd6#
- 1...Sh4
- 2.Qe4#
- 2.Qd6#
- 1...Sg5
- 2.Qd6#
- 1...Rd2!
- threat
- 1.Sh6?
- threat
- 2.Sg4#
- 2.Sf7#
- 2.Qf5#
- 1...f5
- 2.Qxf5#
- 1...Rd2
- 2.Sg4#
- 2.Sf7#
- 1...Rg2
- 2.Sf7#
- 2.Qf5#
- 1...Se1
- 2.Sg4#
- 2.Sf7#
- 1...Sg1
- 2.Sg4#
- 2.Sf7#
- 1...Sd2
- 2.Sg4#
- 2.Sf7#
- 1...Sh2
- 2.Sf7#
- 1...Sh4
- 2.Sg4#
- 2.Sf7#
- 1...Sg5
- 2.Sg4#
- 1...Sd4!
- threat
- 1.Se7?
- threat
- 2.Sc6#
- 2.Sg6#
- 2.Qf5#
- 2.Qd5#
- 1...f5
- 2.Qxf5#
- 1...Rd2
- 2.Sc6#
- 2.Sg6#
- 1...Rg2
- 2.Sc6#
- 2.Qf5#
- 2.Qd5#
- 1...Se1
- 2.Sc6#
- 2.Sg6#
- 2.Qd5#
- 1...Sg1
- 2.Sc6#
- 2.Sg6#
- 2.Qd5#
- 1...Sd2
- 2.Sc6#
- 2.Sg6#
- 2.Qd5#
- 1...Sh2
- 2.Sc6#
- 2.Sg6#
- 2.Qd5#
- 1...Sh4
- 2.Sc6#
- 2.Qd5#
- 1...Sg5
- 2.Sc6#
- 2.Sg6#
- 2.Qd5#
- 1...Sd4!
- threat
- 1.Sg3?
- Keys
- 1.Sd6!
- threat
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 2.Qf5#
- 1...Sd4
- 2.Qe4#
- 1...f5
- 2.Qxf5#
- 1...Rc2
- 2.Sf7#
- 2.Qe4#
- 2.Qf5#
- 1...Se1
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 1...Sg1
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 1...Sd2
- 2.Sf7#
- 1...Sh2
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 1...Sh4
- 2.Sc4#
- 2.Sf7#
- 2.Qe4#
- 1...Sg5
- 2.Sc4#
- 1...c4
- 2.Sxc4#
- 2.Sf7#
- 2.Qe4#
- 2.Qf5#
- threat
- 1.Sd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Tries
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- S(b);::QAR1(A)
- S(b);::QAB1(A)
- Refutation
- R(a);P_PINQ(A)
- Try
- S(C);
- Threat
- DUALS(3)
- Vars
- P(e);::QAR1(A),XP(e)
- S(b);::S(C)
- Refutation
- S(b);
- Try
- S(C);
- Threat
- DUALS(4)
- Vars
- P(e);::QAR1(A),XP(e)
- Refutation
- S(b);
- Try
- Actual
- S(C);
- Threat
- DUALS(4)
- Vars
- S(b);::QAR1(A)
- P(e);::QAR1(A),XP(e)
- S(b);::S(C)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).